The dorsal portion of the first pharyngeal arch, comprising the upper jaw[ZFIN,VHOG]. [ VHOG:0000511 https://github.com/obophenotype/uberon/issues/153 ]
Synonyms: dorsal visceral arch 1 upper pharyngeal jaw
Term information
- VHOG:0000511
- ZFA:0001272
- EFO:0003659
- TAO:0001272
efo_slim
dorsal mandibular arch
palatoquadrate arch
upper jaw
dorsal pharyngeal arch 1
dorsal visceral arch 1
upper pharyngeal jaw
Subsequent vertebrate evolution has also involved major alterations to the pharynx; perhaps the most notable occurred with the evolution of the gnathostomes. This involved substantial modifications to the most anterior pharyngeal segments, with the jaw forming from the first, anterior, pharyngeal segment, while the second formed its supporting apparatus, the hyoid.[well established][VHOG]
Term relations
- subdivision of skeleton
- neural crest-derived structure
- develops from some pharyngeal arch 1
- part of some skeleton of upper jaw
- part of some splanchnocranium